Micromod MOD: MODBUS RTU Communications Guide User Manual
Page 23
MODBUS RTU
COMUNICATIONS GUIDE
19
Scaling
In ML Block, specify actual range for variable, if the number of significant digits is 5 or less. For ranges with
more than 7 significant digits, such as 500,000 or 750.000, change the units to allow smaller numbers. For
example, instead of 0 to 500,000 CFH, use 0 to 500 KCFH. Also note that the scale factor is for use only with
mSec time values. The field is enabled for sources that can support the data type. If your source data is not
mSec time, do not change the scale factor from default.
In QuickDesigner, leave Input Low at 0 and High at 65535. The Scale Low and High values should match
what is in the Modbus List, unless a decimal is required. If digits to the right of the decimal are needed,
multiply the range value by 10 for one place, 100 for two and etc.. For example, if two places are desired to
the right of the decimal point with a range of 0 to 10, specify a Scale High of 1000. In display Data Format,
specify 2 decimal places.